RHEL 7 : ghostscript (RHSA-2017:0013)

critical Nessus Plugin ID 96308

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

An update for ghostscript is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The Ghostscript suite contains utilities for rendering PostScript and PDF documents. Ghostscript translates PostScript code to common bitmap formats so that the code can be displayed or printed.

Security Fix(es) :

* It was found that the ghostscript functions getenv, filenameforall and .libfile did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable, list directory and retrieve file content respectively, from the target. (CVE-2013-5653, CVE-2016-7977)

* It was found that the ghostscript function .setdevice suffered a use-after-free vulnerability due to an incorrect reference count. A specially crafted postscript document could trigger code execution in the context of the gs process. (CVE-2016-7978)

* It was found that the ghostscript function .initialize_dsc_parser did not validate its parameter before using it, allowing a type confusion flaw. A specially crafted postscript document could cause a crash code execution in the context of the gs process. (CVE-2016-7979)

* It was found that ghostscript did not sufficiently check the validity of parameters given to the .sethalftone5 function. A specially crafted postscript document could cause a crash, or execute arbitrary code in the context of the gs process. (CVE-2016-8602)

Solution

Update the affected packages.

Plugin Details

Severity: Critical

ID: 96308

File Name: redhat-RHSA-2017-0013.nasl

Version: 1.14

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 1/5/2017

Updated: 10/24/2019

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:ghostscript-debuginfo, p-cpe:/a:redhat:enterprise_linux:ghostscript-gtk, p-cpe:/a:redhat:enterprise_linux:ghostscript, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:7.3, cpe:/o:redhat:enterprise_linux:7.4, cpe:/o:redhat:enterprise_linux:7.5, cpe:/o:redhat:enterprise_linux:7.6, cpe:/o:redhat:enterprise_linux:7.7, p-cpe:/a:redhat:enterprise_linux:ghostscript-doc, p-cpe:/a:redhat:enterprise_linux:ghostscript-cups, p-cpe:/a:redhat:enterprise_linux:ghostscript-devel

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 1/4/2017

Vulnerability Publication Date: 3/7/2017

Reference Information

CVE: CVE-2013-5653, CVE-2016-7977, CVE-2016-7978, CVE-2016-7979, CVE-2016-8602

RHSA: 2017:0013

Detections

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